Question

Which one of the following is a correct statement?
(a) The amount of a solid that dissolves in water increases with a rise in temperature.
(b) The amount of a solid that dissolves in water at different temperatures is the same.
(c) The amount of different solutes that dissolve in water is always the same.
(d) The amount of a solute that dissolves in water decreases with a rise in temperature.

Answer 1

(a) The amount of a solid that dissolves in water increases with a rise in temperature.
Solubility increases with increase in temperature.